Finding the Fourth Proportional to 2,198,689.54, 3,313,010.74 and 1,808,079.62
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Solution
The fourth proportional to 2,198,689.54, 3,313,010.74 and 1,808,079.62 is: 2,724,435.21
Step by Step Solution
- Step 1: Write the proportion equation
2,198,689.54 : 3,313,010.74 = 1,808,079.62 : x - Step 2: Convert to fraction form
2,198,689.54/3,313,010.74 = 1,808,079.62/x - Step 3: Cross multiply
2,198,689.54x = 3,313,010.74 × 1,808,079.62 - Step 4: Simplify right side
2,198,689.54x = 5,990,187,190,794.72 - Step 5: Solve for x
x = 5,990,187,190,794.72/2,198,689.54 - Step 6: Final answer
x = 2,724,435.21
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.